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Make send_buffer_requests_recursively batch messages

Browse source 
Also, rename it to get_buffer_requests_recursively to reflect that the
caller has to send all of the batched messages itself.
This commit is contained in:
Cameron Zwarich 2014-07-10 01:31:47 -07:00
parent d4e15697c2
commit adfd6492ad
2 changed files with 25 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

13
src/components/compositing/compositor.rs
View file

@ -743,11 +743,16 @@ impl IOCompositor {
match self.scene.root {
Some(ref mut layer) => {
let rect = Rect(Point2D(0f32, 0f32), page_window.to_untyped());
let mut requests = Vec::new();
let recomposite =
CompositorData::send_buffer_requests_recursively(layer.clone(),
&self.graphics_context,
rect,
scale.get());
CompositorData::get_buffer_requests_recursively(&mut requests,
layer.clone(),
&self.graphics_context,
rect,
scale.get());
for (chan, msg) in requests.move_iter() {
let _ = chan.send_opt(msg);
}
self.recomposite = self.recomposite || recomposite;
}
None => { }

29
src/components/compositing/compositor_data.rs
View file

@ -11,7 +11,8 @@ use geom::matrix::identity;
use geom::point::TypedPoint2D;
use geom::rect::Rect;
use geom::size::{Size2D, TypedSize2D};
use gfx::render_task::{ReRenderMsg, UnusedBufferMsg};
use gfx::render_task;
use gfx::render_task::{ReRenderMsg, RenderChan, UnusedBufferMsg};
use layers::layers::{Layer, Flip, LayerBuffer, LayerBufferSet, NoFlip, TextureLayer};
use layers::quadtree::Tile;
use layers::platform::surface::{NativeCompositingGraphicsContext, NativeSurfaceMethods};
@ -120,11 +121,12 @@ impl CompositorData {
// Given the current window size, determine which tiles need to be (re-)rendered and sends them
// off the the appropriate renderer. Returns true if and only if the scene should be repainted.
pub fn send_buffer_requests_recursively(layer: Rc<Layer<CompositorData>>,
graphics_context: &NativeCompositingGraphicsContext,
window_rect: Rect<f32>,
scale: f32)
-> bool {
pub fn get_buffer_requests_recursively(requests: &mut Vec<(RenderChan, render_task::Msg)>,
layer: Rc<Layer<CompositorData>>,
graphics_context: &NativeCompositingGraphicsContext,
window_rect: Rect<f32>,
scale: f32)
-> bool {
let (request, unused) = Layer::get_tile_rects_page(layer.clone(), window_rect, scale);
let redisplay = !unused.is_empty();
if redisplay {
@ -141,14 +143,14 @@ impl CompositorData {
scale,
layer.extra_data.borrow().id,
layer.extra_data.borrow().epoch);
let _ = layer.extra_data.borrow().pipeline.render_chan.send_opt(msg);
requests.push((layer.extra_data.borrow().pipeline.render_chan.clone(), msg));
}
if redisplay {
CompositorData::build_layer_tree(layer.clone(), graphics_context);
}
let send_child_buffer_request = |kid: &Rc<Layer<CompositorData>>| -> bool {
let get_child_buffer_request = |kid: &Rc<Layer<CompositorData>>| -> bool {
let mut new_rect = window_rect;
let offset = kid.extra_data.borrow().scroll_offset.to_untyped();
new_rect.origin.x = new_rect.origin.x - offset.x;
@ -160,10 +162,11 @@ impl CompositorData {
// to make the child_rect appear in coordinates local to it.
let child_rect = Rect(new_rect.origin.sub(&kid.bounds.borrow().origin),
new_rect.size);
CompositorData::send_buffer_requests_recursively(kid.clone(),
graphics_context,
child_rect,
scale)
CompositorData::get_buffer_requests_recursively(requests,
kid.clone(),
graphics_context,
child_rect,
scale)
}
None => {
false // Layer is offscreen
@ -171,7 +174,7 @@ impl CompositorData {
}
};
layer.children().iter().map(send_child_buffer_request).any(|b| b) || redisplay
layer.children().iter().map(get_child_buffer_request).any(|b| b) || redisplay
}
// Move the sublayer to an absolute position in page coordinates relative to its parent,